EXPLANATION OF PLATE XVII. 



MuitKX Shildhknsis Heilprin (ji. !t7). 



1. Friint vit'w nftlie t.v]ie spociuiou, enliirged. 



MtntKX .Shii.ohensis var. Bubn.si Whilf. (|i. 98). 



2. View of specimen ilnKcribed, enlarged. 



C'ANIHAHU.S CUMIIKULANDIAMS (Jabll (p. 103). 



3,4. Front and back views of an imperfect specimen, the l)eak of wliicli bad been injured 

 during life. 

 .5. Back view of a more elongated individual. 

 K. Front view of Mr. (iabb's tvpe specimen. 



Fasciolaria Woodi (iabb (p. 98). 

 7.x. Two views of the type specimen, natural size. 



Fascioiahia (Lvrosoma) sulcosa Conrad (p. 100). 

 9, 10. Two views of a small imperfect specimen, twice enlarged. 



Mrsvcox s( Ai.AiilSPlRA Courad (p. 102). 

 11, 12. 'I'wo views of tlio most jierfect specimen observed. 



Hl^CCINANOI'S VAKIABILI.S Whitf. (|). 107). 



13. View of a young specimen. 

 M, l.">. Two views of a larger specimen. 

 IH, 17, IX. Views of three other specimens, showing variations of form; all figures enlarged. 



17« 



